Hale-Bopp originated in the Oort Cloud, a theoretical shell of icy planetesimals surrounding the sun in the outer reaches of ...

The cryovolcanic "centaur" comet 29P/Schwassmann-Wachmann has erupted four times in less than 48 hours, becoming unusually ...

Comet 12P/Pons-Brooks and Jupiter were seen by NASA's Solar TErrestrial Relations Observatory-A (STEREO-A). Credit: Space.com ...

Comet Nishimura came into NASA's STEREO-A spacecraft's field of view. The solar wind was interacting with the tail of the ...

There have been signs of instability in the comet. It has undergone at least one outburst, which is what it sounds like: a ...

Nicknamed the “Halloween comet,” Comet C/2024 S1 (ATLAS) evaporated during its flyby of the sun on Monday morning. An ESA and NASA telescope captured its demise.

Back on Oct. 10, Space.com published an article indicating that this comet — which belongs to the Kreutz family of sungrazing comets — was in the process of disintegration and would likely not ...

How, when, and where to look to see Comet C/2023 A3 (Tsuchinshan-ATLAS) after sunset this weekend, with sky charts, before it disappears.

NASA confirmed Tuesday its sun-observing spacecraft captured the moment when the comet Atlas broke into chunks this week as ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A comet nicknamed ...

When it first appeared in September, the comet seemed favorable. An outburst brightened the cosmic snowball, making it appear larger than average Kreutz fragments. Predictions for the comet had it ...

The so-called "Halloween comet" vaporized as it flew within 1 million miles of the sun on Monday, its destruction captured by ...